Patent US3073748A successfully refreshed from Google Patents.
US3073748A
Expired / Lapsed
US
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Coated medicaments
Assignee: Tanabe Pharma Corp
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Filing: 1961-11-17
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Granted: 1963-01-15
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Utsumi Isamu
- 👤 Hashimoto Toshiyuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:27
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/28; A61K9/2806; A61K9/2833; A61K9/284; A61K9/2846; A61K9/2004; A61K9/2022; A61K9/2027; C; C08; C08L; C08L39/00; C08L39/04; C08L39/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A MEDICINAL COMPOSITION COMPRISING TABLETS OF A SOLID FORM MEDICAMENT COMPOUNDED WITH AN AMPHOTERIC FILM-FORMING POLYMER SELECTED FROM THE GROUP CONSISTING OF COPOLYMERS IF (A) VINYLPYRIDINES WITH (B) A LOWER ALIPHATIC A,B-UNSATURATED MONOCARBOXYLIC ACID OF 3 TO 4 CARBON ATOMS AND COPOLYMERS OF (A), (B) AND NEUTRAL CO-MONOMER SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, ACRYLONITRILE, VINYL ACETATE, METHYL METHACRYLATE AND STYRENE.
Claim 2
Dependent Claim
63 words
A MEDICINAL COMPOSITION COMPRISING TABLETS OF A SOLID FORM MEDICAMENT COMPOUNDED WITH AN AMPHOTERIC FILM-FORMING POLYMER SELECTED FROM THE GROUP CONSISTING OF COPOLYMERS IF (A) VINYLPYRIDINES WITH (B) A LOWER ALIPHATIC A,B-UNSATURATED MONOCARBOXYLIC ACID OF 3 TO 4 CARBON ATOMS AND COPOLYMERS OF (A), (B) AND NEUTRAL CO-MONOMER SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, ACRYLONITRILE, VINYL ACETATE, METHYL METHACRYLATE AND STYRENE.
References Cited (Backward Citations)
US2987445A
Cited
US2976214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |